*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    font-family: Calibri,serif;
    font-size: 17px;
    letter-spacing: -0.3px;
}
.clearfix:before,
.clearfix:after{
    display: block;
    content: "";
    clear: both;
}
@media (min-width: 1200px) {
    .container {
        max-width: 1130px;
        padding: 0;
    }
}
nav .container{
    position: relative;
}
nav .container img{
    position: absolute;
    top: -25px;
}
nav{
    padding: 25px 0;
    background: white;
}
.nav-link{
    color: #5e5e5e;
}
.nav-link.active{
    color: #f58020;
}
.nav-link:hover{
    color: #f58020;
}
.banner{
    color: white;
    padding: 140px 0 0 10px;
    width: 100%;
    background: url("../images/dabg.png")no-repeat;
    background-size: 100%;
}
.banner h1{
    font-size: 55px;
}
.banner p{
    font-size: 24px;
}
.banner a{
    color: white;
    background: #f68a2f;
    padding: 12px 28px;
}
.banner .container{
    padding-bottom: 160px;
}
.banner a:hover{
    text-decoration: none;
    opacity: 0.8;
}
.main_1{
    background: white;
    padding: 74px 0 0 0;
}
.main_1 .p_1{
    margin-bottom: 100px;
}
.flex{
    display: flex;
}
.flex1 img{
    width: 52px;
    height: 52px;
    margin: 15px 30px 0 4px;
}
.flex1 p{
    width: 259px;
}
h6{
    font-size: 20px;
    color: #282828;
    font-weight: 600;
}
.main_2{
    padding: 60px 0 80px 0;
    background: #f68a2f;
    color: white;
}
ul li{
    list-style: none;
}
.ul_1 li a{
    padding-left: 20px;
    color: white;
    background: url("../images/jiantou.png") no-repeat;
    background-position: 3px 50%;
}
.img_1{
    padding-top: 16px;
}
.main_3{
    padding: 60px 0 97px 0;
    background: white;

}
.h2_1{
    margin-top: 130px;
}
.flex2{
    justify-content: space-between;
}
.imgle div{
    border: 2px solid #f2f2f2;
    border-radius: 3px;
}
.imgle-1{
    padding: 27px 15px 18px 15px;
}
.imgle-2{
    padding: 20px 16px 27px 16px;
}
.imgle-3{
    padding: 20px 24px 25px 22px;
}
.footer_1,.footer_2{
    color: #dddddd;
}
.footer_1{
    background: #2d2d2d;
    padding: 60px 0 70px 0;
}
.footer_2{
    background: #202020;
    padding: 35px 0 30px 0;
}
.p_3{
    font-weight: 600;
}
.img_2{
    margin-top: 2px;
}
.img_3{
    margin-top: 1px;
}
.imgls{
    display: flex;
    width: 111px;
    justify-content: space-between;
    padding-top: 5px;
}
.img_4{
    height: 13px;
}
.img_5{
    height: 10px;
}
.img_6{
    height: 12px;
}
.wrap{
    flex-wrap: wrap;
}
.ma{
    margin: 56px 0 24px 0;
}

@media (max-width: 600px) {
    body{
        font-size: 90%;
    }
    nav .container img{
        display: none;
    }
    .nav-item{
        width: 33.333333%;
        text-align: center;
    }
    .banner{
        padding: 15px 0;
        text-align: center;
    }
    .banner h1{
        font-size: 120%;
        margin-bottom: 6px;
    }
    .banner p{
        font-size: 100%;
        margin-bottom: 3px;
    }
    .banner a{
        font-size: 26%;
        padding: 3px 10px;
    }
    .banner .container{
        padding: 0;
    }
    .ma{
        margin: 0;
    }
    .mb{
        margin-bottom: 50px;
    }
    .img_1{
        width: 100%;
        margin-bottom: 50px;
    }
    .h2_1 {
        margin-top: 0;
    }
    .mz{
        margin-bottom: 30px;
    }
    .footer_2{
        text-align: center;
    }
    .footer_2 .flex{
        display: block;
    }
    .imgls{
        margin: auto;
    }
    .img-as{
        width: 100%;
    }
    .flex1 p{
        width: 200px;
    }
}